package com.boot.nio.netty.simple;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

public class ServerHandler extends ChannelInboundHandlerAdapter {

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        System.out.println("channelRead");
        ByteBuf buf = (ByteBuf) msg;
        System.out.println("接受到消息："+buf.toString(CharsetUtil.UTF_8));
        System.out.println("客户端："+ctx.channel().remoteAddress());

        //此处可以把业务作为一个任务提交
        ctx.channel().eventLoop().execute(()->{
            System.out.println("task is running......");
        });
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        System.out.println("channelReadComplete");
        ctx.writeAndFlush(Unpooled.copiedBuffer("hello 客户端",CharsetUtil.UTF_8));
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        cause.printStackTrace();
        ctx.channel().close();
    }
}
